Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenues	$ 584,386	$ 782,258	$ 1,024,106
Cost of revenues	272,198	321,672	381,549
Gross profit	312,188	460,586	642,557
Operating expenses:
Research and development	332,225	337,744	332,326
Selling, general and administrative	145,453	146,996	190,971
Operating expenses	477,678	484,740	523,297
Operating income (loss)	(165,490)	(24,154)	119,260
Other income (expense):
Interest income and other, net	11,987	19,165	13,915
Interest expense	(1,310)	(5,554)	(6,723)
Income (loss) before income taxes	(154,813)	(10,543)	126,452
Provision for income taxes	36,197	7,943	38,450
Equity-method earnings (loss)	0	(16,030)	3,400
Net income (loss)	$ (191,010)	$ (34,516)	$ 91,402
Earnings (loss) per share:
Basic (in dollars per share)	$ (5.93)	$ (1.09)	$ 2.61
Diluted (in dollars per share)	$ (5.93)	$ (1.09)	$ 2.54
Weighted-average common shares outstanding:
Basic (in shares)	32,191	31,804	35,086
Diluted (in shares)	32,191	31,804	36,042